Straight roller bearing in wheel
4" x 4-1/2" Top plate
2-5/8" x 3-5/8" -to- 3" x 3" Bolt hole pattern
3/8" mounting bolt
Zerk fitting on wheel
HA4SRH 4”: 700 lbs. Load Capacity 5-5/8" Overall Height
HA6SRH 6” 1200 lbs. Load Capacity 7-1/2" Overall Height